In reply to MattKelk:
I have one of the Decathlon types and cant fault it..
I use it as a rucksack, loads of hoops for clipping/sorting gear, comes with a tarp,gets my lids belay jacket flask etc in and as a handy rope attachment thing on outside...
Jobs a good un..
Had a sling style one previous and boy did it suck carrying it on long walk-ins, but that was a few years ago with my ships anchor 11mm beginers rope which was heavy as you like !!!!
Jamie.